Bug 1830395 (CVE-2020-12690) - CVE-2020-12690 openstack-keystone: OAuth1 request token authorize silently ignores roles parameter
Summary: CVE-2020-12690 openstack-keystone: OAuth1 request token authorize silently ig...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-12690
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
: 1850063 (view as bug list)
Depends On: 1831358 1831359 1831360 1831361 1832400
Blocks: 1830398 1850064
TreeView+ depends on / blocked
 
Reported: 2020-05-01 19:56 UTC by Laura Pardo
Modified: 2021-03-22 00:55 UTC (History)
24 users (show)

Fixed In Version: Keystone 15.0.1, Keystone 16.0.1
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in Keystone, where it inadvertently provided OAuth1 access tokens to every role assignment the creator had for a project, resulting in giving more permissions and escalated access in role assignments than intended. The greatest impact is on confidentiality.
Clone Of:
Environment:
Last Closed: 2020-07-22 13:27:38 UTC
Embargoed:

Attachments (Terms of Use)
propossed patch (20.02 KB, application/mbox)
2020-05-01 20:06 UTC, Laura Pardo 		no flags Details
propossed patch (19.71 KB, application/mbox)
2020-05-01 20:06 UTC, Laura Pardo 		no flags Details
propossed patch (19.95 KB, application/mbox)
2020-05-01 20:07 UTC, Laura Pardo 		no flags Details
Show Obsolete (3) View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:3102 0 None None None 2020-07-22 12:40:17 UTC
Red Hat Product Errata RHSA-2020:3105 0 None None None 2020-07-22 12:40:26 UTC

Description Laura Pardo 2020-05-01 19:56:51 UTC 
A vulnerability was found in Keystone's OAuth1 Token API. Previously the list of roles provided for an OAuth1 access token were ignored, so when an access token was used to request a keystone token, the keystone token would contain every role assignment the creator had for the project. This results in the provided keystone token having more role assignments than the creator intended, possibly giving unintended escalated access.
Comment 1 Laura Pardo 2020-05-01 20:06:30 UTC 
Created attachment 1683827 [details]
propossed patch
Comment 2 Laura Pardo 2020-05-01 20:06:51 UTC 
Created attachment 1683828 [details]
propossed patch
Comment 3 Laura Pardo 2020-05-01 20:07:15 UTC 
Created attachment 1683829 [details]
propossed patch
Comment 4 msiddiqu 2020-05-01 21:37:17 UTC 
References: 
 
https://launchpad.net/bugs/1873290
Comment 12 Nick Tait 2020-05-06 16:37:07 UTC 
Created openstack-keystone tracking bugs for this issue:

Affects: openstack-rdo [bug 1832400]
Comment 15 Nick Tait 2020-05-07 19:59:26 UTC 
External References:

https://security.openstack.org/ossa/OSSA-2020-005.html
Comment 18 Nick Tait 2020-05-14 01:12:58 UTC 
Acknowledgments:

Name: kay (OpenStack)
Comment 19 Michael Kaplan 2020-06-23 13:49:21 UTC 
*** Bug 1850063 has been marked as a duplicate of this bug. ***
Comment 20 errata-xmlrpc 2020-07-22 12:40:14 UTC 
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 15.0 (Stein)

Via RHSA-2020:3102 https://access.redhat.com/errata/RHSA-2020:3102
Comment 21 errata-xmlrpc 2020-07-22 12:40:22 UTC 
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 16.0 (Train)

Via RHSA-2020:3105 https://access.redhat.com/errata/RHSA-2020:3105
Comment 22 Product Security DevOps Team 2020-07-22 13:27:38 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-12690
Comment 23 Jason Shepherd 2021-03-22 00:55:04 UTC 
Statement:

Red Hat Quay includes keystone-client, which is not vulnerable to this (server-side) vulnerability.
Note You need to log in before you can comment on or make changes to this bug.